Re: [R] adding sequence for each value in a vector

From: Liaw, Andy <andy_liaw_at_merck.com>
Date: Fri 28 Oct 2005 - 01:15:00 EST


Here's one way:

> unlist(lapply(x, function(x) x:(x+9)))
 [1] 1 2 3 4 5 6 7 8 9 10 15 16 17 18 19 20 21 22 23 24
[21] 30 31 32 33 34 35 36 37 38 39 45 46 47 48 49 50 51 52 53 54
[41] 60 61 62 63 64 65 66 67 68 69 90 91 92 93 94 95 96 97 98 99
[61] 115 116 117 118 119 120 121 122 123 124

Andy

> From: Yves Magliulo
>
> hi,
>
> i have a vector like :
>
> x<-c(1,15,30,45,60,90,115)
>
> i know that step by step i have always more than 10
>
> min(diff(x)) >=11
>
> i want to add for each value a sequence of value:value+9
> result should be :
>
> 1 2 3 4 5 6 7 8 9 10 15 16 17 18 19 20 21 22 23 24 30 31
> (...) 39 45 46
> (...) 54 60 61 etc..
>
> how can i do this without a loop (i'm sure there is a
> "elegant" way like
> always with R but i can't find it this time!)
>
> best,
>
> yves
>
> [[alternative HTML version deleted]]
>
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https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html Received on Fri Oct 28 05:33:55 2005

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